A few users have written to me asking why their monitors have screens that are randomly turning yellow or green. This is a common problem with computers as they go through their life cycle.

The problem is usually caused by a loose video cable. The first thing you should do is make sure that both ends of your video cable are snug and secure. Tighten the screws on both the monitor and the computer end of the cable.

If that doesn’t work you might need a new video cable. Thankfully these do not cost much and can be bought from your local computer or electronics store. Simply replace the old cable with the new one.

If your problem is still not solved then please write to me in the comments below and we’ll see if I can help.

2 thoughts on “Why does a monitor turn yellow or green?”

I have one for you…
I’ve tried all of the normal troubleshooting steps: cable check and replace. Tested monitor on another computer that is known to be working itself and the monitor is fine on the other computer; as well as with its logo and menu system. Checked video card settings and installed a new video card.
The computer did have a virus that I was able to remove (this is a specialty of mine.); it even had two rootkits found and removed by Malwarebytes Antimalware.
The video was working fine after these viruses were removed. Then, the next day or two it began having a yellow-greenish tint to the screen.
My next attempt will be to try and reseat the Processor and if that doesn’t work, try resetting the BIOS. I have tried installing an update to the BIOS already.
By the way; The tint also shows up during the BIOS startup. So, it doesn’t have to do with Windows software or drivers.
I’ve been in the IT industry for 15 years and do not remember running across this particular problem before. I’m a bit stumpt.

Anything else you can think of?

Monitor: LG W2240T (It was originally connected with VGA and now with DVI through the V.Card)
Computer: Gateway GT5228